AA
REGN icon

ABC Arbitrage’s Regeneron Pharmaceuticals REGN Stock Holding History

ABC Arbitrage’s Portfolio REGN Stock Details REGN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-1,970
Closed -$1.11M – 394
2025
Q3 		$1.11M Buy
+1,970
New +$1.11M 0.11% 124
2025
Q2 		– Sell
-2,511
Closed -$1.59M – 257
2025
Q1 		$1.59M Buy
2,511
+391
+18% +$269K 0.3% 77
2024
Q4 		$1.51M Buy
+2,120
New +$1.78M 0.22% 95

Other funds holding REGN

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dodge & Cox
Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

ABC Arbitrage's REGN Position: Q4 2025 in Review

ABC Arbitrage sold out of Regeneron Pharmaceuticals (REGN) in Q4 2025, closing a stake of 1,970 shares — an estimated $1.11M sold.

ABC Arbitrage first reported a position in REGN in Q4 2024 and held it in 3 quarters. The position peaked at $1.59M in Q1 2025. 1,388 funds tracked by Wall St. Rank hold REGN as of Q4 2025.

  • ABC Arbitrage reported no remaining Regeneron Pharmaceuticals position as of Q4 2025 after selling out during the quarter.
  • ABC Arbitrage sold 1,970 Regeneron Pharmaceuticals shares in Q4 2025, an estimated $1.11M.
  • ABC Arbitrage first reported a position in Regeneron Pharmaceuticals in Q4 2024 and held it in 3 quarters.
  • ABC Arbitrage's Regeneron Pharmaceuticals position peaked at $1.59M in Q1 2025.
  • 1,388 funds tracked by Wall St. Rank held Regeneron Pharmaceuticals as of Q4 2025.

Based on ABC Arbitrage's 13F filing for Q4 2025, filed 4 Feb 2026.